I have been able to change my Apple ID, and associated uses of it with the exception of iCloud. Now a I a system request to enter my password for the old ID but it won't accept anything I type or enter nor let me signout. Any suggestions?
In order to change your Apple ID or password for your iCloud account on your computer, you need to sign out of the account from your computer first, then sign back in using your updated details. (System Preferences > iCloud, click the sign out button)
Tried that - the problem is that the preferences screen for Mail, Contacts & Calendars will not let me do anything, logout, close it etc. I tried to force a close but was told I had to close the system prefernces screen first